Method and apparatus for distinguishing central obstructive and mixed apneas by external monitoring devices which measure rib cage and abdominal compartmental excursions during respiration
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United States of America Patent
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Oct 18, 1988
Issued Date -
N/A
app pub date -
Feb 17, 1987
filing date -
May 9, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for distinguishing between different types of apneic episodes. The method includes measuring a new index, TCD/VT, and measuring the phase relation between the abdominal and rib cage contributions to total respiration volume. The episode is classified as central, obstructive or mixed based on the value of TCD/VT and the phase relation.
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